GB/T 33792-2017
2,4-Diaminobenzenesulfonic acid sodium salt
GB/T 33792-2017
p-Sodium sulphonate benzaldehyde
GB/T 33792-2017
GB/T 33792-2017
Sodium sulphanilate
GB/T 33792-2017
GB/T 33792-2017
Surface active agents—Test methods of technical sodium alkylarylsulphonates (excluding benzene derivatives)
GB/T 33792-2017
GB/T 33792-2017
Ambient air--Determination of ozone--Indigo disulphonate spectrophotometry
GB/T 33792-2017
GB/T 33792-2017
GB/T 33792-2017
GB/T 33792-2017
SODIUM CHLORIDE. DETERMINATION OF FLUORIDE CONTENT. PHOTOMETRIC METHOD WITH SODIUM 2-(SULFOPHENYLAZO)-1,8 DIHYDROXYNAPHTHALENE-3,6 DISULFONATE (SPADNS).
GB/T 33792-2017
GB/T 33792-2017
Determination of mean relative molecular mass for technical straight-chain sodium alkylbenzenesulfonates - Gas-liquid chromatographic method
GB/T 33792-2017
GB/T 33792-2017
Photographic chemicals sodium di-(2-ethyl-hexyl) succinate sulfonate
GB/T 33792-2017
GB/T 33792-2017
Analytical methods of steam and water in power plants Part 20:Determination of dissolved oxygen (Colorimetric method using sodium indigo disulphonate)
GB/T 33792-2017
Analytical methods of steam and water in power plants Part 19:Determination of dissolved oxygen (Colorimetric method using sodium indigo disulphonate glucose)
GB/T 33792-2017
Chemical reagent Arsenazo Ⅲ